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-rw-r--r--test/stat/memcmp-stat.c104
1 files changed, 104 insertions, 0 deletions
diff --git a/test/stat/memcmp-stat.c b/test/stat/memcmp-stat.c
new file mode 100644
index 000000000..6bc9ddc01
--- /dev/null
+++ b/test/stat/memcmp-stat.c
@@ -0,0 +1,104 @@
+/* Distilled from issue found with tar and symlinks.
+ * Make sure that the whole stat struct between runs
+ * is agreeable.
+ */
+
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <assert.h>
+#include <time.h>
+
+void show_stat(struct stat *st)
+{
+ printf(
+ "------------------\n"
+ "st_dev = %li\n"
+ "st_ino = %li\n"
+ "st_mode = %li\n"
+ "st_nlink = %li\n"
+ "st_uid = %li\n"
+ "st_gid = %li\n"
+ "st_rdev = %li\n"
+ "st_size = %li\n"
+ "st_blksize = %li\n"
+ "st_blocks = %li\n"
+ "st_atime = %li\n"
+ "st_ansec = %li\n"
+ "st_mtime = %li\n"
+ "st_mnsec = %li\n"
+ "st_ctime = %li\n"
+ "st_cnsec = %li\n",
+ (long int)st->st_dev,
+ (long int)st->st_ino,
+ (long int)st->st_mode,
+ (long int)st->st_nlink,
+ (long int)st->st_uid,
+ (long int)st->st_gid,
+ (long int)st->st_rdev,
+ (long int)st->st_size,
+ (long int)st->st_blksize,
+ (long int)st->st_blocks,
+#ifndef __UCLIBC__
+ (long int)st->st_atime,
+ (long int)st->st_atim.tv_nsec,
+ (long int)st->st_mtime,
+ (long int)st->st_mtim.tv_nsec,
+ (long int)st->st_ctime,
+ (long int)st->st_ctim.tv_nsec
+#else
+ (long int)st->st_atime,
+ (long int)st->st_atimensec,
+ (long int)st->st_mtime,
+ (long int)st->st_mtimensec,
+ (long int)st->st_ctime,
+ (long int)st->st_ctimensec
+#endif
+ );
+}
+
+int main()
+{
+ int ret;
+ int fd;
+ struct stat fst, st;
+
+ unlink(".testfile");
+ fd = open(".testfile", O_WRONLY | O_CREAT | O_EXCL, 0);
+ if (fd < 0) {
+ perror("open(.testfile) failed");
+ return 1;
+ }
+ ret = fstat(fd, &fst);
+ if (ret != 0) {
+ perror("fstat(.testfile) failed");
+ return 1;
+ }
+ close(fd);
+
+ ret = stat(".testfile", &st);
+ if (ret != 0) {
+ perror("stat(.testfile) failed");
+ return 1;
+ }
+
+ ret = memcmp(&fst, &st, sizeof(fst));
+ if (ret != 0) {
+ printf("FAILED: memcmp() = %i\n", ret);
+ show_stat(&fst);
+ show_stat(&st);
+ }
+
+ unlink(".testfile");
+
+ return ret;
+}